Results 21 to 30 of about 297,907 (210)

Laser forming of steel tubes

open access: yesCzasopismo Techniczne, 2019
The paper presents a study on microstructure and microhardness changes obtained in the spun carbon steel tube after shaping by a laser beam. The surface of a pipe was machined circumferentially using a 1500 W CO2 laser beam at various diameters (distance from the focus).
Norbert Radek   +2 more
openaire   +3 more sources

Research on Compression Behavior of Square Thin-Walled CFST Columns with Steel-Bar Stiffeners

open access: yesApplied Sciences, 2018
Local buckling in steel tubes was observed to be capable of reducing the ultimate loads of thin-walled concrete-filled steel-tube (CFST) columns under axial compression.
Zhao Yang, Chengxiang Xu
doaj   +1 more source

2D and 3D graphical datasets for bamboo-inspired tubular scaffolds with functional gradients: micrographs and tomograms

open access: yesData in Brief, 2020
Presented in this article are 2D and 3D graphical datasets in the form of micrographs and tomograms that were obtained as part of a systematic microstructural characterization by scanning electron microscopy and X-ray microtomography to illustrate freeze-
Kaiyang Yin   +3 more
doaj   +1 more source

The modern trends of development of the pipe and tube industry [PDF]

open access: yesMetalurgija, 2010
First the paper presents a review of steel production of the tubes in world: possible potencial is about 110 × 106 the tons (35 × 106 seamless tubes, rest welding tubes). In 2007. y.
YU. G. Gulyayev   +4 more
doaj  

HIGH FREQUENCY INDUCTION WELDING OF HIGH SILICON STEEL TUBES [PDF]

open access: yesTecnologia em Metalurgia, Materiais e Mineração, 2012
High-Si steel is a low cost alternative for the fabrication of tubular structures resistant to atmospheric corrosion. However, the literature has often pointed out that steels presenting a higher Si content and/or a lower Mn/Si ratio have higher ...
Ricardo Miranda Alé   +4 more
doaj   +1 more source

Effect of reinforcement stiffeners on square concrete-filled steel tubular columns subjected to axial compressive load [PDF]

open access: yes, 2014
Eight stiffened square concrete-filled steel tubular (CFST) stub columns with slender sections of encasing steel and two non-stiffened counterparts were tested subjected to axial compressive load.
Fu, F., Wang, Y., Yang, Y.
core   +1 more source

Strength and Deformation of Concrete-Encased Grouting-Filled Steel Tubes Columns Exposed to Monotonic Quasi-Static Loading Conditions

open access: yesInfrastructures
This study aimed to evaluate the effectiveness of a novel concrete-encased column (CE) using small circular steel tubes filled with cementitious grouting material (GFST) as the primary reinforcement instead of traditional steel bars.
Ahlam A. Abbood   +3 more
doaj   +1 more source

Experimental and numerical investigations of interfacial bond in self-compacting concrete-filled steel tubes made with waste steel slag aggregates

open access: yesDevelopments in the Built Environment, 2022
New self-compacting concrete (SCC) mixtures were designed to improve the interfacial bond strength in concrete-filled steel tubes (CFST) at 30 days and one year.
Raed M. Abendeh   +2 more
doaj   +1 more source

Shaft bearing behaviors of micro cast-place piles with steel tubes

open access: yesYantu gongcheng xuebao, 2019
The micro cast-in-place pile with steel tubes is one of the micro-piles, which is often used in the foundation reinforcement of buildings. Based on the static load test results of micro cast-in-place piles with steel tubes in a foundation reinforcement ...
PAN Jian , YUAN Wen-jun , VAISHALI Sharma , CHENG Sai
doaj   +1 more source

Axial behaviour of HSS tubular sections strengthened by CFRP strips: an experimental investigation

open access: yesScience and Engineering of Composite Materials, 2012
The main objective of this investigation is to assess the feasibility of strengthening square hollow steel tubular sections subjected to compression and to develop or predict the suitable wrapping scheme of fibre reinforced polymer (FRP) to enhance the ...
Sundarraja Muthukamatchi Chelliah   +1 more
doaj   +1 more source

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